Just last night I read our 2yo daughter "Dinosaur Dance" and she "read" it back to me afterwards (complete with my added animations)!
The words per page aren't enough that she gets bored, the illustrations are colorful and silly, and each book lasts "just long enough". We've got a small collection going now that she loves to have read to her. When I see one of the books in a store, I know it's an easy buy.